be up to意思是:胜任;从事于...;忙于
be up to(英 [bi: ʌp tu:] 美 [bi ʌp tu] ),be up to中的to是介词,后需接名词性结构。
如:
1、What were you up to last week?
你上周在做什么?
2、I think David is up to something, but he didn’t tell me.
我认为戴维在做些什么,但是他没有告诉我。
需要注意区分的是be up to …和… is up to sb,后者表示“...由某人决定/取决于某人”。
如:We will make a plan for you, but the rest is up to you.
我们会为你制定一个计划,但是剩下的就靠你了。
扩展资料:
be up to的四种用法:
1、有……的能力;有必需的技术、能力和学识去做某事
如:After a few weeks’trial he was shifted to another department.as he was not up to the work that had been given him.
经过几个星期的试用之后,他被调去别的部门,因为他不能胜任先前交给他的工作。
2、在做......
如:What are those children up to?
那些孩子在做什么?
3、是某人的责任或本分
如:It is up to everyone to make the best of abilities。
克尽己能是每个人的本分。
4、注意up to much处于一种满意状态或达到令人满意的标准,主要用于否定句,偶尔用于肯定疑问句中,但不能用于肯定陈述句。
如:She is quite good at French,but her Latin is not up to much。
她的法文很好,但她的拉丁文却不怎么样。
be up to 胜任,从事于;
例句:
I'll be up to see you tomorrow.
我明天来看你。
If we stay, we'll be up to our necks.
如果我们还呆在这里, 我们就出不去了。
be up to
胜任;该由…负责;轮到…;从事,忙于
胜任;该由…负责;轮到…;从事,忙于